Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/11710
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Alicioǧlu, M. | - |
dc.contributor.author | Demir, O.T. | - |
dc.contributor.author | Björnson, E. | - |
dc.date.accessioned | 2024-08-18T17:23:06Z | - |
dc.date.available | 2024-08-18T17:23:06Z | - |
dc.date.issued | 2024 | - |
dc.identifier.isbn | 979-835030358-2 | - |
dc.identifier.issn | 1525-3511 | - |
dc.identifier.uri | https://doi.org/10.1109/WCNC57260.2024.10570675 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.11851/11710 | - |
dc.description | 25th IEEE Wireless Communications and Networking Conference, WCNC 2024 -- 21 April 2024 through 24 April 2024 -- Dubai -- 200793 | en_US |
dc.description.abstract | Extremely large aperture arrays can enable unprecedented spatial multiplexing in beyond 5G systems due to their extremely narrow beamfocusing capabilities. However, acquiring the spatial correlation matrix to enable efficient channel estimation is a complex task due to the vast number of antenna dimensions. Recently, a new estimation method called the 'reduced-subspace least squares (RS-LS) estimator' has been proposed for densely packed arrays. This method relies solely on the geometry of the array to limit the estimation resources. In this paper, we address a gap in the existing literature by deriving the average spectral efficiency for a certain distribution of user equipments (UEs) and a lower bound on it when using the RS-LS estimator. This bound is determined by the channel gain and the statistics of the normalized spatial correlation matrices of potential UEs but, importantly, does not require knowledge of a specific UE's spatial correlation matrix. We establish that there exists a pilot length that maximizes this expression. Additionally, we derive an approximate expression for the optimal pilot length under low signal-to-noise ratio (SNR) conditions. Simulation results validate the tightness of the derived lower bound and the effectiveness of using the optimized pilot length. © 2024 IEEE. | en_US |
dc.description.sponsorship | ASELSAN Inc.; Stiftelsen för Strategisk Forskning, SSF; Scientific and Technological Research Council of Türkiye, (FFL18-0277) | en_US |
dc.language.iso | en | en_US |
dc.publisher | Institute of Electrical and Electronics Engineers Inc. | en_US |
dc.relation.ispartof | IEEE Wireless Communications and Networking Conference, WCNC | en_US |
dc.rights | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.subject | channel estimation | en_US |
dc.subject | Extremely large aperture array | en_US |
dc.subject | holographic massive MIMO | en_US |
dc.subject | pilot length optimization | en_US |
dc.subject | 5G mobile communication systems | en_US |
dc.subject | Antennas | en_US |
dc.subject | Least squares approximations | en_US |
dc.subject | Signal to noise ratio | en_US |
dc.subject | Spectrum efficiency | en_US |
dc.subject | Aperture arrays | en_US |
dc.subject | Extremely large aperture array | en_US |
dc.subject | Holographic massive MIMO | en_US |
dc.subject | Large aperture | en_US |
dc.subject | Least-square estimators | en_US |
dc.subject | Low bound | en_US |
dc.subject | Optimisations | en_US |
dc.subject | Pilot length optimization | en_US |
dc.subject | Spatial correlation matrix | en_US |
dc.subject | User equipments | en_US |
dc.subject | Channel estimation | en_US |
dc.title | Pilot Length Optimization With RS-LS Channel Estimation for Extremely Large Aperture Arrays | en_US |
dc.type | Conference Object | en_US |
dc.department | TOBB ETÜ | en_US |
dc.identifier.wos | WOS:001268569301007 | en_US |
dc.identifier.scopus | 2-s2.0-85198837055 | en_US |
dc.institutionauthor | … | - |
dc.identifier.doi | 10.1109/WCNC57260.2024.10570675 | - |
dc.authorscopusid | 58898285500 | - |
dc.authorscopusid | 55807906700 | - |
dc.authorscopusid | 24478602800 | - |
dc.relation.publicationcategory | Konferans Öğesi - Uluslararası - Kurum Öğretim Elemanı | en_US |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Conference Object | - |
item.languageiso639-1 | en | - |
item.fulltext | No Fulltext | - |
item.grantfulltext | none | - |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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